A filing with the SEC today revealed a significant insider sale of CME Group shares as — Terrence A Duffy, Director and Officer — disposed of 20,000 shares in the company having a market value of approximately $3,033,200. There have been 5 insiders with buy/sell transactions in the past 90 days prior to this filing. All of these trades have been sales resulting in the disposition of 21,358 company shares. Adding the most recent activity to this 90-day history indicates insider trades have seen net sales of 41,358 shares and have averaged 6,893 shares per transaction over this time period.

The number of insider buy/sell trades at CME Group is higher than the 13 peer company average over the last 90-day period. However, the number of shares per average transaction for CME Group insider buy-sell trading is very close to the average of the Financial & Commodity Market Operators & Service Providers (NEC) peer group of companies. This peer group saw 0 shares purchased and 98,581 shares sold resulting in an average of 6,161 shares traded and netting out with company insiders having sold 6,161 shares on average.

The data sourced in creating and writing in this story eliminates all trading activity reported to the SEC that involves awards, options, exercise of derivative securities, company buy-backs, taxes, gifts, shares acquired via inheritance and tenders or exchange offers.